He kind of touches upon it, but there is a lot of value in being able to go into an interview and literally being able to say about a topic "I wrote the book on it." It's a tremendous signal to have overcome the hurdles of getting a publisher to accept you and print your book with your name on it.
I used to have several guys on my team that had published books- and they were great, and were constantly getting contacted about other jobs, and even to write other books.
They all said the actual book itself made them no money beyond their initial (small-hardly five figure) advance, and in terms of dollars per hour they probably would have been better off getting a fast food job, but it opened up a lot of doors and made them at least a little bit "internet famous."
I used to have several guys on my team that had published books- and they were great, and were constantly getting contacted about other jobs, and even to write other books.
They all said the actual book itself made them no money beyond their initial (small-hardly five figure) advance, and in terms of dollars per hour they probably would have been better off getting a fast food job, but it opened up a lot of doors and made them at least a little bit "internet famous."